1. Currently, I'm in charge of automating service operations and developing back-end service. Therefore. I'm highly interested in tech stacks like Docker, k8s, terraform and etc. Also I'm considering building a reliable high capacity log system. 2. Developed Smart Contract using Solidity compatible with ERC-20 - Deployed smart contract using Truffle - Implemented automated test environment with Ganache 3. Experimented AI Based Authentication Technology for six months - Analyzed lots of data and managed them in Amazon DynamoDB - Server-less back end development using AWS Services (Lambda, DynamoDB, API Gateway and etc) 4. Developed Hand-written Signature Identification Server which is used in France and Brazil - Configured rapid deployment environment with Docker and Amazon Elastic Beanstalk - Back-end development using Django. - Applied the blue-green strategy to build zero-downtime deployment. - Researched Handwritten signature verification technology ($P-Recognizer) 5. Developed Identification Server for foreigners used in USA, We cooperated with Trulioo - Development restful api server using spring framework - Led my team to adopt Hibernate ORM.

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1. Datastore Enhancement Project of Korea Database Agency - Developed data collection and analysis engine in distributed environment with Akka and Scala - Developed website crawling bot with Python, Scrapy and Selenium. - Developed data management system ( Spring Framework, Hibernate ) - Visualized data statistics ( Highchart.js ) - https://www.datastore.or.kr/intro.do 2. Developed BigData Analysis Solution called Raonbit 2.0 - I was responsible for development of management tool. - Designed and developed REST API Server with the Play framework, Scala and the Slick ORM - Implemented Single Page Application using Angular JS - https://www.youtube.com/watch?v=PnbPjRTp_0k 3. Developed Issue Management System Like Redmine - This software was delivered to the QA firm. - Developed Content Management System (CMS) with Scala, Play Framework and Slick ORM - Applied micro-service architecture with Docker. - Developed API-Gateway Server, User and Issue management system.

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